This is a pair of smart sealing assemblies designed for the GSL-1100X-11-III Series furnaces.SPECIFICATIONS Package included One pair of Hinged type vacuum-sealed flange with hinged type opening door for easy sample loading One flange with gauge and valve, one flange with valve, two steel sealing rings, four high-temperature silicone O-rings (300°C Max.), and six screws Features Made of Stainless Steel with double high-temperature silicon O-rings on each flange. 2 hanged flange caps for easy loading & unloading the furnace. On one end of the flange has a 1/4" needle valve, 1/4 NPT for Digital pressure gauge attached, and the other end has a 1/4" needle valve & KF-40 Vacuum port. Seal tube by tightening screws on the flange without any welding and glue. Designed for MTI GSL-1100X-11-III Series tube furnace. Excellent for any type of tubing: glass, quartz, and stainless steel pipe with OD 278 -280 mm Vacuum level 10E-2 torr by a mechanical pump 10E-4 torr by a small turbopump and 10-6 torr by hi-speed turbopump Warning Must put a refractory tube block in front of the flange (see picture below) to avoid heat radiation melt silicone O-ring. You may order a ceramic block in related products Please do not over-tighten the three hex screws on the flanges to avoid overpressure incidents. The recommended torque is 35~40 inch-lbs. For liability considerations, MTI does not recommend or endorse the use of any toxic, flammable or corrosive gases with our flange assemblies. Please contact us with any concerns. Options Click here to choose flange for tube from 1" to 11" Vacuum Pump & High Vacuum Station
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